Lamp



FIG. 1 is a perspective view, taken from the front, top, and left side of a lamp showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof, with the broken lines therein forming no part of the claimed design;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a perspective view showing the lamp of my new design in a position of use on a bicycle handlebar, which is shown in broken lines and forms no part of the claimed design. 

The ornamental design for a lamp, as shown and described. 